Pump.



H. D. SCHROEDER.

PUMP.

APPLICATION FILED 0c.29. 1915.-

Patgnted Jan. 9, 1917.

UNITED STATES PATEN; OFFICE.

HERMAN D. SCHROEDER, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-HALF TOFRANK G. WAGNER, OF LOS ANGELES, CALIFORNIA.

PUMP.

Specification of Letters Patent.

Patented Jan. 9, 1917..

Application filed December 29, 1915. Serial No. 69,156.

I '0 all whom'z't may concern:

Be it known that I, HERMAN D. SCHROE- DER, a citizen of the UnitedStates, residing at Los Angeles, in the county of Los Angeles and Stateof California, have invented 'a new and useful Pump, of which the fol-The accompanying drawings illustrate an embodiment of my invention, andreferring thereto:

Figure 1 is a longitudinal section of the pump. Fig. 2 is a perspectiveview of the runner and the inclosing casing member therefor. Fig. 3 is aperspective view of the stator for deflecting the flow from the runnerinto the outlet. Fig, 4 is a plan view of the pump.

' The device comprises two casing members 1 and 2, provided respectivelywith inlet and outlet pipes 3 and 4, each formed at its outer end withcollar or other means 5 to receive a suitable nipple or other means forattachment or insertion of the pump in a pipe line. The respectivemembers 1 and 2 are further provided with casing portions 6 and 7,formed as bowls extending obliquely to the axis of the two pipe portions3 and 4, said bowls fitting face to face to form a pump chamber 8 andbeing secured together by screws 9, extending through flanges 10 on therims of said bowls. Packing indicated at 11, is provided in grooves 11formed in the rims of the bowls. Axshaft 12 is mounted in bearing'13 oncasing member 1, and extends through a stufling box 14, and is providedat its outer end with a pulley 15 to receive the usual driving belt.Said shaft carries a runner or'rotor 17, formed of a flat plate or disk,having slots 18 and provided with blades 19, extending at right anglesto said plate, at the forward edges of the respective slots, said bladesbeing curved obliquely backward with reference to the direction ofrotation of the runner, so as to tend to force the Water outwardly byimpulsion as well as by centrifugal action. The flat portions or facesof the runner plate, indicated at 21, in advance ofeach blade 19 act toconfine the water between such face and the opposite face of the stator,to enable the blades to act more effectively in forcing the wateroutward.

A stator 20 is mounted in the casing member 2, opposite the rotor, andis formed as a,

flat plate, seated at its peripheral edge in rabbcts 24 in the rims ofthe bowls 6 and 7, so as to be clamped between members (3 and 7; saidplate being provided with V-shaped openings 23 and with blades 25extending from the rear edges of said openings toward the wall of thecasing member 2, said blades having their outer edges curved to fit thecurved wall of the casing member 2, and being curved so that their facestoward the rotor or runner are concave.

direction of rotation of the runner, so as to be directed reversely tothe blades of the runner. The flat central portion; of the stator formsan inner end bearing for the shaft 12.

The two sections above described are assembled by means of screws 9, sothat their pipe portions 3 and 4 are in alinement, and are then securedin position in the circulating system of an automobile, replacing, forexample, a thermosiphon section in such a system, the device beingconnected by the usual nipples, indicated at 28 in Fig.4, in such mannerthat the shaft 12 is parallel with the shaft which is to drive it. Theobliquity of shaft 12 to the pipe portions 3 and 4, is of advantage infacilitating such adjustment of the shaft, and it is also of advantagein enabling the pump to be made with its inlet and outlet portionsforming substantially a straight pipe section. The runner is driven bybelt connec tion 27, see Fig. 4, from a'shaft of the engine, in thedirection indicated by the arrow in Fig. 2, and forces the wateroutwardly by centrifugal action and also by impelling action due to thecurvature of the blades, and the water so driven outwardpasses throughthe openings 23 in the stator and is deflected by the blades 25, soas-to be forced to the substantially central outlet pipe portion 4, insuch manner that the, momentum of the Water due to its whirling Saidblades 25- extend obllquely forward with regard to the utilized inproducing the axis 0 motion as it leaves the runner, is largely motionor pressure in the direction of outflow. As the action of the runners islargely centrifugal, the end pressure on the shaft bearing is minimized.What I claim is: p 1. A pump-comprising two members, providedrespectively with inlet and outlet pipe portions extending in ing a pumchamber extending obliquely to said pipe portions, a shaft rotatablymounted on one of said members and having its axis directed obliquely tothe axis of said pipe portions, and provided with driving means, arunnermounted within said pump chamber, on said shaft, and provided withblades for producing centrifugal action on liquid within said pumpchamber,

and a stator mounted within said pump U chamber and provided with bladesfor depump chamber,

- outlet pipe portion.

3. A pump comprising two members, provided respectively with casingportions secured together to form a pump chamber, an inlet pipe portionconnected with one of said casing portions and extending obliquelythereto, a shaft journaled on said pipe poralinement, and with casingportions secured together and formtion and extending obliquely thereto,a runner carried by said shaft and extending within the casing portionadg'acent thereto and provided with openings or passage of liquid andwith blades in advance ofsaid openings and directed backwardly and out:wardly with reference to the direction of r0- tation of said shaft, forcombined centrifugal and impelling action, an outlet pipe portion on theother casing member and a stator mounted within said other casingportion and provided with openings for passage of liquid and with bladesdirected reversely to the blades of the runner.

4. A pump comprising two members provided respectively with inlet andoutlet pipe portions and with casing members connected respectively tosaid pipe portions and secured together to form a pump chamber, a shaftrotatably mounted on the inlet pipe portion and extending obliquelythereto and provided with driving means, a runner carried by said shaftand extendin within the adjacent casin member, and ormed as a flat platehaving openings for passage of liquid and havlng blades extendingobliquely rearward with reference to the direction of rotation of theshaft, for centrifugal and impelling action, and a stator formed as aflat plate having its peripheral portion clamped between said casingportions and provided with openings for passage of liquid and withblades directed reversely to the blades of the stator to deflect theliquid to the outlet pipe portion, said runner-having flat portions inadvance of the blades for confining the liquid between the said flatportions and the stator.

In testimony whereof I have hereunto set my hand, at Los Angeles,California, this 23rd day of December, 1915.

HERMAN D. SCHROEDER.

